News Column

Findings on Applied Materials & Interfaces Reported by R. Gupta et al

June 17, 2014

By a News Reporter-Staff News Editor at Journal of Technology -- New research on Applied Materials & Interfaces is the subject of a report. According to news reporting originating from Bangalore, India, by VerticalNews correspondents, research stated, "In this study, we demonstrate that a disposable chip periodically patterned with suitable ligands, an ordinary cellphone camera, and a simple pattern recognition software, can potentially be used for quantitative diagnostics. A key factor in this demonstration is the design of a calibration grid around the chip that, through a contrast transfer process, enables reliable analysis of the images collected under variable ambient lighting conditions."

Our news editors obtained a quote from the research, "After exposure to a dispersion of amine terminated silica beads used as analyte mimicking pathogens, an epoxy-terminated glass substrate microcontact printed with octadecyltrichlorosilane (250 ?m periodicity) developed a characteristic pattern of beads which could be easily imaged with a cellphone camera of 3.2 MP pixels. A simple pattern recognition algorithm using fast Fourier transform produced a quantitative estimate of the analyte concentration present in the test solution. In this method importantly, neither the chip fabrication process nor the fill-factor of the periodic pattern need be perfect to arrive at a conclusive diagnosis."

According to the news editors, the research concluded: "The method suggests a viable platform that may potentially find use in fault-tolerant and robust point-of-care diagnostic applications."

For more information on this research see: Cellphone camera imaging of a periodically patterned chip as a potential method for point-of-care diagnostics. Acs Applied Materials & Interfaces, 2014;6(6):3923-9. (American Chemical Society -; Acs Applied Materials & Interfaces -

The news editors report that additional information may be obtained by contacting R. Gupta, Chemistry and Physics of Materials Unit, DST Unit on Nanoscience, Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur PO, Bangalore, Karnataka 560064, India. Additional authors for this research include R.G. Reifenberger and G.U Kulkarni.

Keywords for this news article include: Asia, India, Bangalore, Applied Materials & Interfaces.

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Source: Journal of Technology

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